Water-closet.



PATENTBD NOV. 29, 1904. P. J. MADDBN.

WATER CLOSET.

APPLIGATION FILED snPT. 12, 1902.

2 SHBETB--BHBBT l.

No MODEL.

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Ziff/27]?eacfecf/ PATENTBD NOV. 29, 1904.

P. J. MDDEN.

WATER GLOSET.

APPLICATION FILED SEPT. 12, 1902.

2 SHEETS-SHEET 2.

N() MODEL.

/e/ )if Patented November 29, 1904,

PATRICK J. MADDEN, OF CHICAGO, ILLINOIS.

WATER-CLOSET.

SPECIFICATION forming part of Letters Patent No. 776,408, dated November 29, 1904.

Application filed September l2, 1902. Serial No. 123,087. (No model.)

T0 a/ZZ whom, it may concern:

Be it known that I, PATRICK J. MADDEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in IVatenClosets, of which the following is a specification.

The present invention relates to what is known as a siphon-j et closet, being a closet in which the siphonic action of the trap is aided by a small jet of water discharged upward Within its short or uptake limb.

More particularly stated it relates to a siphon-jet closet in which the bowl and all of the water-passages for both supplying it with water and for evacuating it are integral and preferably made of earthenware, although the invention is not concerned with the material of which it is made. Such a closet comprises a bowl having a hollow flushing-rim, a siphonic-discharge trap, a jet-opening, a chamber at the top of the trap into which the water from the tank or other source is delivered, and a system of passages for leading the water from said chamber to the hollow rim and to the jet-opening.

To form the water-chamber above referred to, a shell is built around and over the upper portion of the trap, the top of the shell being in the form of a horizontal slab the top of which is usually flush with the top of the hollow rim.

One object of the invention is to minimize the height of a closet of this type, and to this end I lower the side walls of the shell sulhciently to bring the under side of the top slab to a bearing on the crown of the trap, and in order to provide the necessary passages for leading the Water forward to the hollow rim without constricting the crown of the trap I leave spaces between the sides of the shell and the sides of the crown. This construction not only enables me to minimize the height of the closet as a whole, but has the additional advantage of supporting and strengthening the top slab.

In a siphonic-jet closet such as above described the adjacent portions of the two limbs of the siphon are rounded, so that they form a depression or channel the outline of which parallels an imaginary line passing centrally through the center of the trap. This depression or channel, if exposed, is objectionable because it affords a lodging-place for dirt and dust and also because it detracts from the ornate appearance of the closet. Thisv channel or depression is used as a passage for leading the water from the water-chamber to the jetopening. T o this end the sides of the shell aforesaid are continued downward, so as to completely bridge over the said channel or depression, the line of contact between the sides of the trap and that portion of the shell which lies below the crotch of the trap being substantially parallel with the aforesaid central line of its two limbs. In order to permit the water to pass downward from the water-chamberand around the sides of the upper bend of the trap, and thus enter the upper end of the water-passage thus formed, the shell, between its lines of contact with the trap, and starting from a point somewhat below the crotch and extending upward therefrom is gradually enlarged laterally, so that its upper portion is in the form of a bulbous enlargement. Below this bulbous portion the shell (on each side of the trap) takes the form of a flat slab the outer surface of which merges imperceptibly with the outer surfaces of the two limbs of the trap, and thus a practically flat surface is presented. This space has heretofore been bridged over and used as a single passage for conveying water to the jet-opening. It has been found, however, that by reason of its large cross-sectional area and its great width, extending from one slab to the other, the water upon entering it from opposite sides churns and in expelling' the air produces a disagreeable noise. Another object of my invention is to prevent this, and to this end I divide the space longitudinally by a web which joins the two limbs of the Siphon.

Other objects of the invention are to make the structure strong and compact, and these objects I accomplished by bracing its several parts against each other, as hereinafter described.

In the accompanying drawings, which are made a part of this specification, Figure 1 is IOO a vertical longitudinal section of a watercloset embodying the invention. Fig. 2 is a section of a portion thereof on the line 2 2, Fig. l, looking in the direction of the arrow. Fig. 3 is a horizontal section thereof on the line 3 3, Fig. l, looking' downward. Fig. L is a section of a portion thereof on the line 4 4, Fig. l, looking in the direction of the arrow.

A represents the bowl proper, having a hollow rim A, which is supplied with water through a divided inlet a, leading from a chamber B, the slab C, which forms the top of this chamber, being supported in part by a post D, which rises from the short limb E of the trap and divides the rim-inlet, in part by direct contact with the crown of the trap, and in part by a wall or diaphragm F, which lills the spaces bounded by the crown, the slab C, and the adjacent sides g of a shell G. The upper portion of this shell is in the form of a bulbous enlargement whichincloses the crown of the trap and together therewith and with the slab C provides a large chamber H, to which the water is admitted through an opening c in the slab C. The chamber H communicates with the chamber B through two openings f, formed through the wall F upon opposite sides of the aXial plane of the trap and wholly outside of the circle described by the crown of the trap, said crown being' of the full capacity of the other portions of the trap and without any constriction. The making of the crown of the trap of full capacity and at the same time providing ample passages through which the water may reach the rim and without placing the slab C far above the crown of the trap, and thereby increasing the height of the structure, is rendered possible by leaving ample spaces between the rounded top of the crown and those sides g of the shell which join and proceed upward from the sides of the trap. It will be understood, of course, that the wall F is not necessary to this purpose, said wall being provided for the sole purpose of strengthening this part of the structure. The lower portion of the shell takes the form of slabs g', which join the sides of the trap along lines substantially parallel with the central line of its two limbs and bridge over the space between said limbs. This space communicates at with a chamber J, from which leads a jet-opening K, so disposed as to discharge a jet of water upward within the short limb E of the trap. The slab-like portions g of the shell gradually merge with the bulbous portion, and the latter is continued downward far enough to pass the crotch formed by the junction of the two limbs of the trap, so as to leave passages 7i, through which water may pass from the chamber H to the space I, the outline of the water-passages formed by these parts being indicated by the dotted lines /t/ in Fig. l. The space I is divided longitudinally by a web or wall L, which joins the two limbs of the trap and braces them one against the other. It also serves to reduce the cross-sectional area of the space and to divide it into two separate passages, the advantage of which is that the churning of the water within it and the disagreeable noise incident thereto are obviated. Itis well known that if a stream of water be discharged through a port or passage of given cross-sectional area into a passage of larger cross-sectional area containing air the water will churn and splash about and in the process of expelling the air will produce a disagreeable gurgling and rattling noise, while, on the other hand, if it be discharged into a passage of the same or smaller cross-sectional area the water will act as a piston and drive the air before it without any noise whatever. This is the principle involved in this dividedspace of reduced capacity.

That l claim as new, and desire to secure by Letters Patent, isw

1. A device of the class described having a bowl, a hollow rim, asiphonic trap having an unconstricted crown, and a bulbous shell inclosing the upper portion of the trap, said shell having a top slab supported directly by the crown of the trap and sides so disposed as to leave at the sides of the crown forwardlyextending passages for supplying' the rim with water, substantially as described.

2. A device of the class described having a bowl, a hollow rim, a siphonic trap having an unconstricted crown, a bulbous shell inclosing the upper portion of the trap, said shellhaving a top slab and sides so disposed as to leave between them and the sides of the crown spaces, and a wall filling the spaces bounded by the crown, the slab and the sides of the shell, said wall having upon opposite sides of the center of the crown forwardly-extending openings for supplying the rim, substantiallyas described.

3. A device of the class described, having a bowl, a hollow rim, a siphonic trap having an unconstricted crown, a bulbous shell inclosing the upper portion of the trap so as to leave spaces at the sides of the crown, said shell having a top slab, a wall lilling the spaces aforesaid and having forwardly extending openings for supplying the rim with water and a post rising from the trap to the slab, in front of said wall, substantially as described.

t. A device of the class described, having a bowl, a hollow rim, a siphonic trap having an unconstricted crown, and a shell inclosing the upper portion of the trap, said shell being in the form of a bulbous enlargement surmounted by the slab, said slab being supported directly by the crown and the sides of said bulbous enlargement being so disposed as to leave between them and the sides ofthe crown spaces for the passage of water to the rim, substantially as described. I

5. A device of the class described having a bowl, a hollow rim, a siphonic trap, slabs join- IOO ing the limbs of the trap along lines substantially parallel with the central line of said limbs and bridging over the space between them, a longitudinal web dividing said space into two passages, a jet-opening communicating with said passages, and means for admitting water to their upper ends, substantially as described.

6. A device of the class described, having a bowl, a hollow rim, a siphonic trap, slabs joining the limbs of the trap along lines substan tially parallel with the central line of said limbs and bridging over the space between them, a longitudinal web dividing said space into two passages, a jet-opening communicating with said passages and a shell surrounding the upper portion of the trap and extending downward past the crotch and joining the slabs below the crotch, substantially as described.

7. A device of the class described having a bowl, a siphonic trap, slabs joining the limbs of the trap along lines substantially7 parallel with the central line of said limbs and bridging over the space between them, a longitudinal web dividing said space into two passages, a jet-opening connected with said passages and ashell in the form of a bulbous enlargement surrounding the upper portion of the trap eX- tending downward past the crotch and joining the slabs below the crotch, substantially as described.

8. A device of the class described having a bowl, a siphonic trap, slabs joining the limbs of the trap along lines substantially parallel with the central line oli' said limbs and bridging over the space between them, the outer surfaces of the slabs merging imperceptibly with the outer surfaces of the limbs, a longitudinal web dividing the space into two passages, a jet-opening communicating with said passages and a shell in the form of a bulbous enlargement surrounding the upper portion of the trap, extending downward past the crotch and joining the slabs below the crotch, thus providing passages for leading water to the upper ends of the passages aforesaid, substantially as described.

9. A device of the class described, having a bowl, a hollow rim, a trap having an unconstricted crown, and a shell at the upper portion of the trap, said shell having a slab over the trap and sides disposed so as to leave at each side of the crown of the trap a fore-andaft passage for supplying the rim with water, substantially as described.

PATRICK J. MADDEN.

Witnesses:

L. M. HOPKINS, H. M. MoDoNnLL. 

